Storage cabinet



FIG. 1 is a top left front perspective view of a storage cabinet showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a side elevational view thereof; the opposite side being a mirror image; and,

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a storage cabinet, as shown and described. 